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Finding the Fourth Proportional to 533,635.20, 800,906.40 and 218,318.40

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Solution

The fourth proportional to 533,635.20, 800,906.40 and 218,318.40 is: 327,663.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,635.20 : 800,906.40 = 218,318.40 : x
  2. Step 2: Convert to fraction form
    533,635.20/800,906.40 = 218,318.40/x
  3. Step 3: Cross multiply
    533,635.20x = 800,906.40 × 218,318.40
  4. Step 4: Simplify right side
    533,635.20x = 174,852,603,797.76
  5. Step 5: Solve for x
    x = 174,852,603,797.76/533,635.20
  6. Step 6: Final answer
    x = 327,663.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.